package com.ysd.util;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

import com.ysd.entity.XinWen;
public class DBManager {
	private final static String DRIVER ="com.mysql.jdbc.Driver";
	private final static String URL="jdbc:mysql://localhost:3306/xiyangyangchaoshi";
	private final static String USER="root";
	private final static String PWD="admin";
	//    private final static String DRIVER = "com.mysql.jdbc.Driver";
	//    private final static String URL = "jdbc:mysql://localhost:3306/xiyangyangchaoshi";
	//    private final static String USER = "root";
	//    private final static String PWD = "admin";
	public static Connection getConnection() {
		try {
		Class.forName(DRIVER);
		return DriverManager.getConnection(URL, USER, PWD);
		} catch (ClassNotFoundException e) {
		e.printStackTrace();
		} catch (SQLException e) {
		e.printStackTrace();
		}
		return null;
		}
	public static int executeUpdate(String sql) {
		Connection conn = null;
		Statement st = null;
		try {
		conn = getConnection();
		st = conn.createStatement();
		return st.executeUpdate(sql);
		} catch (SQLException e) {
		e.printStackTrace();
		return 0;
		} finally {
		closeAll(conn, st, null);
		}
	}
	public static void closeAll(Connection conn, Statement st, ResultSet rs) {
		try {
		if (rs != null) {
		rs.close();
		}
		if (st != null) {
		st.close();
		}
		if (conn != null) {
		conn.close();
		}
		} catch (SQLException e) {
		e.printStackTrace();
		}
	}
} 